| 摘要 |
PURPOSE:To switch the operation in a short time by providing a communication equipment for connecting the control memory devices, and an operation switching control device between the exchange control equipments for multiplex communication. CONSTITUTION:When read and write are not executed to the memory device MEM1, and address is sent to the device MEM1 from the operation switching control device SW CONT, a data is read out from the device MEM1, it is sent to the memory device MEM2, and it is written into the same address as that of the device MEM1. When the operation switching is executed, the exchange control equipments PROC1, PROC2 for communication are stopped, and the contents of the register REG1 are sent and written to the register REG2 through the communication equipment COME. When the contents of the devices MEM1, MEM2 in said PROC1, PROC2 have coincided entirely, the normal operation of said PROC2 is started. |
